Patent GB-190816012-A (GB)
Title: Improvement in Cement Applying Machines.
Inventor: LAUTENSCHLAGER WILLIAM FREDERI
Filed: 1908-07-28
Granted: 1909-02-18
Abstract: 16,012. Lautenschlager, W. F. July 28. Cementing.-A machine for applying a viscous cement to leather or other fabrics in the manufacture of shoes &c., comprises a rotating cementapplying brush and a stock-feeding mechanism, the former having a peripheral speed in excess of the speed of the stock. A shaft 6 driven by a pulley 8 carries a feed-wheel 21. A gear-wheel 15 fast on the shaft 6 meshes with a gear-wheel 13 which drives a second shaft 12. This shaft carries also a wheel 14 which gears with two wheels 17, 38. The gear-wheel 17 is fixed to a sleeve 16 journaled on the shaft 6. To the sleeve 16 is fixed a circular brush the diameter of which exceeds that of the feed-wheel 21. The sleeve 16 is lubricated through a bore 25, formed in the screw tread 23 and shaft 6, and lateral discharge openings 27. The wheel 38 is secured to a spindle 33 journaled in bearings 35, 36, the outer of which is removable as by screws 37. To this spindle and between its bearings is fixed a cement-feeding wheel 32 having longitudinal grooves 48 extending partly across its face. This cement-feeding wheel and the brush rotate in opposite directions, as shown in Fig. 6, the brush wiping the cement from the grooves 48. The bearings 35, 36 are in a downward extension of a head 31, which is screwed on to the shank 41 of the cement cup 3, the head 31 and cement cup 3 being thus clamped to the frame 2. The shank 41 of the cement cup has a bore 44, continuous with the bore 45 of the head 31, which contains a cock 46 controlling the supply of cement to the wheel 32. The lower portion of the bore 45 is extended in the direction of rotation of the wheel 32 to provide a wedge-shaped " roof " which forces the cement into the grooves 48 of the roller and prevents any rolling of the cement within the bore 45. The extremities of the head 31 are extended around the roller to form wiping-lips 49, 50, to obviate waste of cement or clogging. The lip 49 is formed with two side wings 51, rubbing on the smooth portions of the roller, and chamfered inwards to wipe any cement left by the brush on the outer portions of the roller into the grooves. The cement cup has a cover 4. The work A is fed forwards over a table 5 in the direction of the arrow c, Fig. 6. To limit the area in contact with the brush 18 and to effect the desired wiping action, a stock support 55, having a surface rounded from front to rear, is caused to project above the table 5 through a gap therein by means of a spring 62, which is housed in an adjusting-screw 64 and bears on the recessed heel 61 of a lever 57 pivoted to the under surface of the table in brackets 59. The stock support is a part of the lever 57, and a vertical guide 70 is preferably formed on the inner edge of the stock-support, the outer edge of which is rounded to facilitate the insertion of stock. An adjustable stop 68 limits the upward movement of the stock-support 55. The work is fed forward by the milled edge 72 of the feed-wheel 21, which contacts with the upper side (generally the undressed one) of the leather in the case of a vamp for a shoe. The relative motion produced between the brush 18 and the stock, by reason of their different speeds combined with the difference in diameter between brush and feed-wheel, results in a brushing action, indicated in Fig. 6. The brush preferably rotates in the direction of the feed, as shown in Fig. 6, and a ratio of 1¢ to 1 is suggested as a relative speed between the brush and feed-wheel. A guard 73 protects the gears.